gopls/internal/server: add windsurf and cursor as language client

Both the langauge client are closed source, the client info is found
by enabling vscode-go and turn on verbose lsp methods.

For golang/go#74874

Change-Id: Ie79292c575c6254d3aac8f110ebb21956bf4b311
Reviewed-on: https://go-review.googlesource.com/c/tools/+/693095
Reviewed-by: Robert Findley <rfindley@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Hongxiang Jiang <hxjiang@golang.org>

Author: h9jiang

gopls/internal/server/general.go

@@ -681,6 +681,10 @@ func recordClientInfo(clientName string) {
 	case "Sublime Text LSP":
 		// https://github.com/sublimelsp/LSP/blob/e608f878e7e9dd34aabe4ff0462540fadcd88fcc/plugin/core/sessions.py#L493
 		key = "gopls/client:sublimetext"
+	case "Windsurf":
+		key = "gopls/client:windsurf"
+	case "Cursor":
+		key = "gopls/client:cursor"
 	default:
 		// Accumulate at least a local counter for an unknown
 		// client name, but also fall through to count it as